I received a couple of tubs of SRD's Bulgarian Rose shaving soap and love the scent. I'd like to get it out of the tub and into a shaving mug but like most glycerine based shaving soaps, it's stuck to the plastic tub. Does anyone have a sure-fire way to do this, at $50.00 a tub I don't want to ruin a tub of this lovely scented shaving soap...